To inspect a 22.000-N truck a mechanic raises it with a hydraulic lift. If the radius of the small piston is 4.0 cm, and the radius of the large piston is 20 cm, find the force that must be exerted on the
small piston to lift the truck
1,313 N
4,400 N
1.100 N
880 N
None of the choices.

Work = force × a. work b. energy c. distance d. momentum

In a heat engine if 1000 j of heat enters the system the piston does 500 j of work, what is the final internal energy of the system if the initial energy was 2000 j? 1. write the equation 2.list out your known variables 3.plug the numbers into the equations 4.solve 5.write your solution statement that includes initial energy and final

Question part points submissions used suppose that 2 j of work is needed to stretch a spring from its natural length of 26 cm to a length of 36 cm. (a) how much work is needed to stretch the spring from 28 cm to 32 cm? (round your answer to two decimal places.)